package com.sky.controller.admin;

import com.sky.constant.MessageConstant;
import com.sky.result.Result;
import com.sky.utils.AliOssUtil;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;

import java.util.UUID;

@RestController("adminCommonController")
@RequestMapping("/admin/common")
@Slf4j
@Api(tags = "通用接口")
public class CommonController {
    @Autowired
    private AliOssUtil aliOssUtil;

    /**
     * 文件上传
     *
     * @param file
     */
    @PostMapping("/upload")
    public Result<String> upload(MultipartFile file) {
        log.info("文件上传：{}", file);
        try {
            //获取文件名
            String originalFilename = file.getOriginalFilename();
            //获取原始文件的后缀
            //这个Java函数用于从originalFilename中提取文件扩展名。它首先找到字符串中最后一个逗号（,）的位置，然后使用substring方法从该位置到字符串末尾截取子字符串
            String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
            //生成新文件名
            String objectName = UUID.randomUUID().toString() + extension;
            //文件请求路径
            String filePath = aliOssUtil.upload(file.getBytes(),objectName);
            return Result.success(filePath);
        } catch (IOException e) {
            log.error("文件上传失败");
        }
        return Result.error(MessageConstant.UPLOAD_FAILED);
    }

}
